// ============================================================================
//
// Copyright (C) 2006-2008 Dengues
//
// Google Group: http://groups.google.com/group/dengues
//
// QQ Group: 24885404
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// ============================================================================
package org.dengues.reports.editor.design.ruler;

import org.dengues.reports.editor.design.models.ReportsDiagram;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.swt.widgets.Display;

/**
 * Qiang.Zhang.Adolf@gmail.com class global comment. Detailled comment <br/>
 * 
 * $Id: Dengues.epf Qiang.Zhang.Adolf@gmail.com 2008-8-22 qiang.zhang $
 * 
 */
public class RepEditorRulerUtils {

    /**
     * the horizontal and vertical DPI
     */

    public static org.eclipse.swt.graphics.Point dpi = Display.getDefault().getDPI();

    /**
     * Transforms the inch to pixel
     * 
     * @param x the x
     * @param y the y
     * @return a new point
     */

    public static Point inchToPixel(double x, double y) {
        int xpixel = (int) (inchToPixel(x));
        int ypixel = (int) (inchToPixel(y));
        return new Point(xpixel, ypixel);
    }

    /**
     * Transforms the inch to pixel
     * 
     * @param x
     * @return pixel value
     */
    public static double inchToPixel(double x) {
        return (x * dpi.x);
    }

    /**
     * Transforms the pixel to inch
     * 
     * @param x
     * @return pixel value
     */
    public static double pixelToPixelInch(int x) {
        return (((double) x) / dpi.x);
    }

    /**
     * Qiang.Zhang.Adolf@gmail.com Comment method "getReportsDiagramSize".
     * 
     * @param masterPage
     * @return
     */
    public static Dimension getReportsDiagramSize(ReportsDiagram masterPage) {
        Dimension size = null;
        // if (masterPage == null) {
        size = new Dimension(inchToPixel(8.5, 11).x, inchToPixel(8.5, 11).y);
        // }
        return size;
    }
}
